“It was what they called in the old days ‘a shotgun wedding,’” one guest told me. “But it’s no secret. They are both very open about the pregnancy.”

Fox — a former CIA spy and current peace activist and lecturer — hid her baby bump behind a big bouquet for her wedding photos amid the likes of Robert F. Kennedy Jr. and his wife, Cheryl Hines, Susan Sarandon and Swedish Prime Minister Stefan Löfven.

Friends of the groom meeting Fox for the first time were quickly won over.

“It happened quickly, and I had my doubts and am protective of Bobby,” one pal told me, “but they seem very much in love.”

Sources say it will be a girl arriving before the end of the year.

Another family friend said, “I’m sure they didn’t want to upset [Bobby’s grandmother] Ethel, but she’s a strong woman and is probably just glad they did the right thing.”